scholarly journals Synthesis and Characterization of Cellulose Acetate Membrane from Cotton Spinning Waste

2021 ◽  
Vol 25 (3) ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 91-98
Author(s):  
Rina Apriani ◽  
Taufiqur Rohman ◽  
Kamilia Mustikasari

The research of synthesis and characterization of cellulose acetate membranes fromoil palm empty fruit bunches (OPEFB) had been done. The purpose of this research is tofind out the characteristics of the cellulose acetate membrane from cellulose acetate ofOPEFB. The cellulose acetate membrane was prepared using the cellulose acetate (CA)and chloroform as solvent in the ratio 1:6, and the variations of polietilena glycol (PEG) asadditives were 10%, 20%, and 30% w/w. Membrane characterization was done inpermeability (flux), permselektivitas (rejection), and membrane morphology. The test wasperformed on water, T-­70;; 1% w/v and T-­500;; 1% w/v dextran solution. The resultsshowed that cellulose acetate membrane had the best characteristic in the addition ofPEG/S 10% w/w. The permeability was 55.54 L/m2hour in water, 18.48 L/m2hour fordextran T-­70 and 5.14 L/m2hour for dextran T-­500. The perm selectivity was 67.24% fordextran T-­70 and 79.46% for dextran T-­500. The SEM (Scanning Electron Microscope)analysis on membrane pore showed that the distribution of pore sizes is fine.Keywords : membrane, cellulose acetate, oil palm empty fruit bunches


1990 ◽  
Vol 55 (12) ◽  
pp. 2933-2939 ◽  
Author(s):  
Hans-Hartmut Schwarz ◽  
Vlastimil Kůdela ◽  
Klaus Richau

Ultrafiltration cellulose acetate membrane can be transformed by annealing into reverse osmosis membranes (RO type). Annealing brings about changes in structural properties of the membranes, accompanied by changes in their permeability behaviour and electrical properties. Correlations between structure parameters and electrochemical properties are shown for the temperature range 20-90 °C. Relations have been derived which explain the role played by the dc electrical conductivity in the characterization of rejection ability of the membranes in the reverse osmosis, i.e. rRO = (1 + exp (A-B))-1, where exp A and exp B are statistically significant correlation functions of electrical conductivity and salt permeation, or of electrical conductivity and water flux through the membrane, respectively.


2016 ◽  
Vol 153 ◽  
pp. 582-591 ◽  
Author(s):  
Tabinda Riaz ◽  
Adnan Ahmad ◽  
Sidra Saleemi ◽  
Muhammad Adrees ◽  
Fahad Jamshed ◽  
...  

Polymer Korea ◽  
2019 ◽  
Vol 43 (6) ◽  
pp. 852-861
Author(s):  
Hyo Sung Choi ◽  
Ga Yeun Kim ◽  
Young Ho Kim

2014 ◽  
Vol 111 ◽  
pp. 41-46 ◽  
Author(s):  
Khalil Azzaoui ◽  
Abdelatif Lamhamdi ◽  
El Miloud Mejdoubi ◽  
Mohammed Berrabah ◽  
Belkheir Hammouti ◽  
...  

2008 ◽  
Vol 73 (1) ◽  
pp. 74-82 ◽  
Author(s):  
Guimes Rodrigues Filho ◽  
Douglas Santos Monteiro ◽  
Carla da Silva Meireles ◽  
Rosana Maria Nascimento de Assunção ◽  
Daniel Alves Cerqueira ◽  
...  

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